WO2014012291A1

WO2014012291A1 - Foldable mobility scooter for old people

Info

Publication number: WO2014012291A1
Application number: PCT/CN2012/080657
Authority: WO
Inventors: 董桂华
Original assignee: 詹伟(上海)机电有限公司
Priority date: 2012-07-17
Filing date: 2012-08-28
Publication date: 2014-01-23
Also published as: CN102743262A; CN102743262B

Abstract

A foldable mobility scooter for old people includes a front frame (1) and a rear frame (2). Guide wheels (3) are positioned at the front end of the front frame (1) and rotate around a shaft. The end of a foldable operation portion (4) is connected to the shaft, and rear wheels (5) are arranged at the rear end of the rear frame (2). A supporting mechanism (6) is arranged on the rear frame (2), and a foldable seat (7) is arranged on the supporting mechanism (6). The supporting mechanism (6) is raised to high position, when in working state. The supporting mechanism (6) is lowered to low position, when in non-working state. The rear end of the front frame (1) is connected to a hinged seat (8), and a bearing (9) is arranged on the outer side of each of a left end face and a right end face of the hinged seat (8). A slide rail part (10) is arranged on each of the left side and the right side of the front end of the rear frame (2). Each bearing (9) is inserted into a slide rail of the slide rail part (10) on the side as same as the bearing. When in working state, the bearing (9) is located at the top end of the slide rail, at the same time, the position of the bearing (9) is locked on the slide rail by a locking mechanism (11) located at the front frame (1) and the rear frame (2), so relative movement between the front frame (1) and the rear frame (2) is guaranteed not to happen. When in non-working state, the locking of the bearing (9) via the locking mechanism (11) is released, and the bearing (9) is moved in the slide rail along the downward sloping direction which is far away from the front frame (1), in order to drive the front frame (1) inserted partially into a position below the rear frame (2).

Description

Foldable old scooter

The present invention relates to an old scooter that can be folded for easy carrying, and the old scooter is not only small in size but also can be dragged at will. Background technique

For people such as the elderly and the disabled, due to the decline in physical function or damage to the leg organs, it is often necessary to use walking tools to help them walk. In order to meet the needs of this group of people, the old scooter was born. The old scooter can help users walk in a short distance.

The existing part of the old scooter is large in size, so it requires a large storage space. Moreover, the large-volume old scooter is not very convenient to carry. In particular, the old scooter is faced with a group of people with limited mobility. For this part of the population, it is inconvenient to carry such a large-volume old scooter.

In order to overcome the above problems, a folding old scooter has been proposed. For example, the US Patent No. US 7841610 B2, entitled Foldable Portable Tool (English: FOLD ABLE PEOPLE-CARRYING VEHICLE), discloses a folding old scooter. The folding old scooter includes a rear frame, a rear wheel is respectively mounted on the left and right sides of the rear frame, and a foldable support frame is mounted on the rear frame, the seat is mounted on the support frame, and the rear frame is mounted on the support frame. The front end forms a first pivot portion. The folding old scooter further includes a front frame for placing the foot, and a second pivot portion is formed at a rear end of the front frame, and the second pivot portion is rotated on the first pivot portion. The front end of the front frame extends to form a support portion, the front wheel is mounted on the support portion, the front wheel is pivoted, and a pivot assembly is fixedly coupled to the shaft. The bottom of the handlebar is a third pivot portion, and the third pivot portion is rotated on the pivot assembly. When folding, the seat and the handlebar are respectively folded toward the rear frame and the front frame, and folded into position, and then the front frame and the rear frame are rotated by the rotation of the second pivot portion on the first pivot portion. fold. Lift the folded old scooter up and down so that the rear wheel touches the ground and can be towed forward.

Although the above structure solves the problem that the old and old scooters are large in size and inconvenient to store and carry, the folding between the front frame and the rear frame is achieved by the cooperation of the second pivot portion and the first pivot portion. Therefore, the following problems exist: 1. After the front frame and the rear frame are deployed, the front frame and the rear frame are easily bent downward due to the action of the second pivot portion and the first pivot portion, and cannot be held in one On the plane; 2. After the current frame and the rear frame are folded, if the vibration is applied during the towing process, the rear frame is easily turned away from the front frame, that is, it is easy to eversion. Summary of the invention

It is an object of the present invention to provide an old scooter capable of achieving reliable folding between a front frame and a rear frame. In order to achieve the above object, the technical solution of the present invention provides a foldable old scooter, including a front frame and a rear frame. The guide wheel is located at the front end of the front frame, and the guide wheel rotates around the axis, and the folding operation is performed. The end of the part is connected to the shaft, and the rear wheel is provided at the rear end of the rear frame. The support mechanism is arranged on the rear frame, and the foldable seat is arranged on the support mechanism. When in the working state, the support mechanism rises to a high level. Position, when in the non-working state, the support mechanism is lowered to a low position, characterized in that: the rear end of the front frame is connected with the hinge seat, and a bearing is respectively arranged on the outer side of the left and right side end faces of the hinge seat, at the front end of the rear frame A slide rail member is respectively disposed on the left and right sides, and the bearing is inserted into the slide rail of the slide rail member on the same side thereof. When in the working state, the bearing is located at the top end of the slide rail, and at the same time, on the front frame and the rear frame The locking mechanism limits the position of the bearing on the slide rail to ensure that the front frame does not move relative to the rear frame. When in the non-working state, the lock mechanism is released from the lock mechanism. The bearing moves obliquely downward in the direction of the rail away from the front frame, thereby causing the front frame to be partially inserted under the rear frame.

Preferably, the sliding rail comprises at least one horizontal sliding rail, the water smoothing rail is connected to a vertical sliding rail, the vertical sliding rail is connected to a diagonal sliding rail, and the locking mechanism is fixed on the front end of the rear frame. The two blocks have a card slot formed on the block, and a card shaft is respectively arranged on the inner side of the left and right end faces of the hinge seat, and a baffle is arranged between the two blocks, and the baffle is fixed at The front end of the rear frame further includes a sealing plate, wherein two ends of the sealing plate are respectively fixedly connected with the left and right end faces of the hinge seat, and at least one of the upwardly movable blocking pins is disposed on the sealing plate When in the working state, the card shaft is snapped into the card slot of the card block on the same side thereof, and the pin is moved down so that the end portion passes through the sealing plate and abuts against the baffle, and the bearing is on the sliding rail The upper position is defined to ensure that the front frame does not move relative to the rear frame. When in the non-operating state, the stop pin moves up until the end of the stop pin is disengaged, and the bearing is on the slide rail. Moving on the smooth rail of water on the direction of the front frame, so that the card shaft is disengaged from the block Grooves, and then a direction away from the front vehicle frame obliquely downward by the vertical motion of the slide rail and the lower rail obliquely, so as to drive downward the front frame section is inserted into the rear frame.

Preferably, a handle that is easy to handle is provided on the stop pin.

Preferably, a reinforcing block is respectively arranged on the two card shafts, and when in the working state, the reinforcing block is supported on the hinge seat.

Preferably, a mounting seat is provided on the sealing plate, and the locking pin is mounted on the sealing plate by a mounting seat.

Preferably, the operating portion includes a handlebar upper tube and a handlebar lower tube, and the handlebar upper tube and the handlebar lower tube are connected by a quick lock structure, and the quick lock structure is locked by a quick lock handle, and the handlebar lower tube The bottom portion is provided with a fourth pivot shaft, and the fourth pivot shaft cooperates with a fifth pivot shaft on the front insertion shaft, and the front insertion shaft connects the shaft of the guide wheel.

Preferably, the seat comprises a base, and a rear end of the base extends upward to form a first extension portion, further comprising a backrest The lower end of the back extends downward to form a second extension, and the first extension and the second extension are hinged.

Preferably, the supporting mechanism comprises a left and right symmetrically arranged lifting telescopic mechanism, the lifting telescopic mechanism comprises two seat supporting elbows with X-shaped crossover, the intersection of two seat supporting elbows is hinged, and two seat supports One end of the elbow is fixedly connected to the bottom of the seat, and the other end is respectively hinged with a slider, the slider is sleeved on the rail shaft, and the rail shaft is fixedly connected with the rear frame.

The invention realizes folding by the sliding rail component or the like. After the current frame and the rear frame are unfolded, the locking mechanism ensures that no considerable movement occurs between the front frame and the rear frame, ensuring safe use; after folding, The front frame can be held below the rear frame, improving the reliability of the folding. DRAWINGS

1 is a schematic view showing the overall structure of a foldable old scooter according to the present invention;

Figure 2 is a side view of the foldable old scooter after the front frame is moved to the underside of the rear frame;

Figure 3 is a partial enlarged view of a portion A in Figure 2;

Figure 4 is a partial enlarged view of the lower tube portion of the handlebar of Figure 2;

Figure 5 is a schematic view of the foldable seat portion of Figure 1;

Figure 6 is a partial enlarged view of a portion B in Figure 5;

Figure 7 is a partial schematic view of the rear frame portion;

Figure 8 is a schematic view showing a part of the parts of Figure 7 removed;

Figure 9 is a partially enlarged schematic view showing the sealing plate of Figure 7 after being removed;

Figure 10 is a partial schematic view of the rail member of Figure 7;

Figure 11 is a schematic view of the seat of the present invention after folding;

Figure 12 is a schematic view of the support mechanism of the present invention after folding;

Figure 13 is a schematic view of the operating portion of the present invention after being bent forward;

Figure 14 is a schematic view of the front frame of the present invention moved down to the lower frame of the rear frame;

Figure 15 is a schematic view of the folded body of the present invention. detailed description

In order to make the present invention more apparent, the preferred embodiments are described in detail with reference to the accompanying drawings.

As shown in FIG. 1, the present invention provides a foldable old scooter, comprising a front frame 1 and a rear frame 2, the guide wheel 3 is located at the front end of the front frame 1, and the guide wheel 3 is pivoted, foldable The end of the operating portion 4 is connected to the shaft. Knot 2 to 4, the operating portion 4 includes a handlebar upper tube 20 and a handlebar lower tube 21. The handlebar upper tube 20 and the handlebar lower tube 21 are connected by a quick lock structure 22, and the quick lock structure 22 is locked by the quick lock handle 23, and a fourth pivot 24 is provided at the bottom of the handlebar lower tube 21, the fourth The pivot 24 cooperates with a fifth pivot 26 on the front insert 25 which connects the shaft of the guide wheel 3.

A rear wheel 5 is disposed at a rear end of the rear frame 2, and a support mechanism 6 is disposed on the rear frame 2. The foldable seat 7 is disposed on the support mechanism 6. When in the working state, the support mechanism 6 is raised to a high position. When in the non-working state, the support mechanism 6 is lowered to the low position. 5 and 6, the seat 7 includes a base 27, the rear end of the base 27 extends upward to form a first extension portion, and further includes a backrest 28. The lower end of the backrest 28 extends downward to form a second extension portion, the first extension portion and The second extension is hinged between. The support mechanism 6 includes left and right symmetrically arranged lifting and contracting mechanisms, and the lifting and contracting mechanism includes two seat supporting elbows 29 intersecting in an X shape, and the intersection of the two seat supporting elbows 29 is hinged, and the two seat supports One end of the elbow 29 is fixedly connected to the bottom of the base 27, and the other end thereof is respectively hinged with a slider 30. The slider 30 is sleeved on the rail shaft 31, and the rail shaft 31 is fixedly connected to the rear frame 2.

7 to 10, the rear end of the front frame 1 is connected to the hinge seat 8, and a bearing 9 is respectively disposed on the outer side of the left and right side end faces of the hinge seat 8, and a left and right sides of the front end of the rear frame 2 are respectively provided with a bearing 9 The rail member 10, the bearing 9 is inserted into the slide rail of the rail member 10 on the same side thereof. The slide rail includes a horizontal slide rail, the horizontal slide rail is connected with a vertical slide rail, the vertical slide rail is connected with a diagonal downward rail, and the oblique down rail is finally connected with a horizontal slide rail.

When in the working state, the bearing 9 is located at the top end of the slide rail, and at the same time, the position of the bearing 9 on the slide rail is limited by the locking mechanism 11 on the front frame 1 and the rear frame 2, and the front frame 1 is secured. It does not move relative to the rear frame 2. The locking mechanism 11 includes two blocks 12 fixed on the front end of the rear frame 2, and a card slot is formed on the block 12, and a card shaft 13 is respectively disposed on the inner side of the left and right end faces of the hinge seat 8, A baffle 14 is disposed between the two blocks 12, and the baffle 14 is fixed to the front end of the rear frame 2. The locking mechanism 11 further includes a sealing plate 15, and both ends of the sealing plate 15 are respectively fixedly connected to the left and right side end faces of the hinge seat 8. Two stopper pins 16 which are movable up and down are disposed on the sealing plate 15 and are respectively fixed to the sealing plate 15 by a mounting seat 19. The two retaining pins 16 are connected to a handle 17 that is horizontally arranged for easy operation. The catch shaft 13 is snapped into the slot of the block 12 on the same side thereof, and the stop pin 16 is moved downward to pass the end portion through the sealing plate 15 against the baffle 14, and the bearing 9 is placed on the slide rail The position is limited to ensure that the front frame 1 does not move relative to the rear frame 2. In order to enhance the rigidity of the card shaft 13, a reinforcing block 18 is respectively provided on the two card shafts 13, and when in the working state, the reinforcing block 18 is supported on the hinge base 8.

When in the non-operating state, the handle 17 is gripped and the stop pin 16 is lifted up, the stop pin 16 is moved up until the end of the stop pin 16 is disengaged, and the bearing 9 is directed toward the front frame 1 on the horizontal rail of the slide rail. The movement causes the card shaft 13 to disengage the card slot of the block 12, and the locking mechanism 11 is released from the limitation of the bearing 9. Through vertical rails, diagonal down rails and horizontal rails The direction away from the front frame 1 is obliquely moved downward, thereby driving the front frame 1 partially inserted under the rear frame 2.

When folding, the backrest 28 is first folded toward the position of the base 27 to achieve the state shown in FIG. Subsequently, the support mechanism 6 is folded downward to reach the state shown in Fig. 12. Then, the handlebar lower tube 21 is slightly bent forward to reach the state shown in FIG. Subsequently, the handle pin 17 is lifted by the handle 17, and the stop pin 16 is moved up until the end of the stop pin 16 is disengaged, and the bearing 9 is moved on the horizontal slide rail of the slide rail toward the front frame 1, so that the card shaft 13 The card slot of the block 12 is disengaged, and the limitation of the bearing 9 by the locking mechanism 11 is released. Then, the vertical rails, the oblique down rails and the horizontal rails are moved obliquely downwards away from the front frame 1, so that the front frame 1 is partially inserted into the lower frame 2, as shown in FIG. status. Then, the backrest 28 is turned up, the handlebar lower tube 21 is folded toward the position of the base 27, and the backrest 28 is finally turned down to reach the state shown in FIG.

Claims

Rights request:

1. A foldable old scooter comprising a front frame (1) and a rear frame (2), the guide wheel (3) being located at the front end of the front frame (1), and the guide wheel (3) pivoting about the axis The end of the foldable operating portion (4) is connected to the shaft, the rear wheel (5) is provided at the rear end of the rear frame (2), and the supporting mechanism (6) is disposed on the rear frame (2), which is foldable The seat (7) is arranged on the supporting mechanism (6). When in the working state, the supporting mechanism (6) rises to a high position, and when in the non-working state, the supporting mechanism (6) descends to a low position, which is characterized by: The rear frame (1) is connected to the hinged seat (8) at the rear end, and a bearing (9) is arranged on the outer side of the left and right end faces of the hinged seat (8), on the left and right sides of the front end of the rear frame (2). A slide rail member (10) is respectively provided, and the bearing (9) is inserted into the slide rail of the slide rail member (10) on the same side thereof, when in the working state, the bearing

(9) Located at the top of the slide rail, and at the same time, the position of the bearing (9) on the slide rail is limited by the locking mechanism (11) on the front frame (1) and the rear frame (2), before the guarantee The frame (1) does not move relative to the rear frame (2). When it is not in operation, the locking mechanism (11) is released from the bearing (9), and the bearing (9) is moved away from the front in the sliding rail. The direction of the frame (1) moves obliquely downward, thereby causing the front frame (1) to be partially inserted under the rear frame (2).

2. The foldable old scooter according to claim 1, wherein: the slide rail comprises at least one horizontal slide rail, the water smooth rail is connected to a vertical slide rail, and the vertical slide rail is connected to a diagonal rail. To the lower rail, the locking mechanism (11) comprises two blocks (12) fixed on the front end of the rear frame (2), and a card slot is formed on the block (12), The inner side of the left and right end faces of the seat (8) are respectively provided with a card shaft (13), and a baffle plate (14) is arranged between the two block blocks (12), and the baffle plate (14) is fixed to the rear car The front end of the frame (2) further includes a sealing plate (15), and two ends of the sealing plate (15) are respectively fixedly connected with the left and right end faces of the hinge seat (8), and at least one can be moved up and down. The stopper pin (16) is disposed on the sealing plate (15). When in the working state, the clamping shaft (13) is caught in the slot of the block (12) on the same side thereof, and the blocking pin (16) is moved downward. Passing the end portion through the sealing plate (15) against the baffle (14), limiting the position of the bearing (9) on the sliding rail, The front frame (1) does not move relative to the rear frame (2), and when in the non-operating state, the stop pin (16) moves up until the end of the stop pin (16) is disengaged, The bearing (9) moves on the horizontal rail of the slide rail in the direction of the front frame (1), so that the card shaft (13) disengages the card slot of the block (12) and passes through the vertical slide rail And the oblique sliding rail moves obliquely downward in a direction away from the front frame (1), thereby driving the front frame (1) to be partially inserted under the rear frame (2).

3. A foldable old scooter according to claim 2, wherein: said stop pin (16) There is a handle (17) for easy operation.

4. A collapsible old scooter according to claim 2, wherein: said two axles

(13) A reinforcing block (18) is respectively arranged on the upper side, and when working, the reinforcing block (18) is supported on the hinge seat (8).

5. A collapsible old scooter according to claim 2, characterized in that: a mounting seat (19) is provided on the sealing plate (15), and the locking pin (16) passes through the mounting seat ( 19) Mounted on the sealing plate (15).

6. The foldable old scooter according to claim 1, wherein: the operating portion (4) comprises a handlebar upper tube (20) and a handlebar lower tube (21), a handlebar upper tube (20) Connected to the lower handlebar (21) by the quick lock structure (22), and the quick lock structure (22) is locked by the quick lock handle (23), and is provided at the bottom of the handlebar lower tube (21). a fourth pivot (24), a fourth pivot (24) cooperating with a fifth pivot (26) on the front spline (25), the front spline (25) connecting the guide wheel (3) axis.

7. The foldable old scooter according to claim 1, wherein: the seat (7) comprises a base (27), and a rear end of the base (27) extends upward to form a first extension. A backrest (28) is also included, the lower end of the backrest (28) extending downwardly to form a second extension, the first extension being hinged to the second extension.

8. A collapsible old scooter according to claim 1, wherein: the support mechanism (6) comprises left and right symmetrically arranged elevating telescopic mechanisms, the elevating telescopic mechanism comprising two X-shaped cross seats The chair support elbow (29) is hinged at the intersection of the two seat support elbows (29), and one end of the two seat support elbows (29) is fixedly connected with the bottom of the seat (7), and the other One end is respectively hinged with a slider (30), the slider (30) is sleeved on the rail shaft (31), and the rail shaft (31) is fixedly connected with the rear frame (2).